Her career has...', WIDTH, -300, FONTFACE, 'Arial, Tahoma', FONTSIZE, '13px')"A documentary filmmaker boards a train at Grand Central Terminal heading to upstate New York to interview the subjects of his latest project..

Under very hot temperatures — greater than 100,000,000 Kelvin (179,999,540.6 F) — the helium nuclei begin to fuse, first as pairs into unstable 4-proton beryllium nuclei, and eventually, as enough beryllium nuclei blink into existence, into a beryllium plus a helium..